Help with Stack errors

Hi there,

I have been having trouble with dBase 4/BDE.  I have five tables in my alias
'DefaultDD'  and link them on a single form via Master Source/Master
Field(Index).  Just recently, I have been getting Stack(Stack Overflow)
errors from both Delphi and Explorer(just before Explorer goes in slow
motion then crashes really hard) after cycling through five to ten records.
My compiler stacks are: min 4000; Max 100000.  The only change from working
to non working was re-adding a NavBar after a mistaken 'delete'.  I have
tried everything from 'building' to reinstalling BDE & IDE.

Any Ideas?